﻿//////////////////////////////////////////////////////////////////
//
// Message.cs
//
// Copyright (c) 2012 Dan Pike.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation files
// (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using ProtoBuf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Utilities;
using ProtoBuf.Meta;

namespace Messages
{
   [ProtoContract]
   public abstract class Message<T>
   {
      ////////////////////////////////////////////////////////////////////////
      //
      protected static Logger logger_;
      private string senderId_;
      private string uid_;
      private DateTime timestamp_;
      private RuntimeTypeModel typeModel_;
      
      ////////////////////////////////////////////////////////////////////////
      //
      protected Message(ProtoBufTags messageId)
      {
         logger_ = Program.Logger;
         typeModel_ = TypeModel.Create();
         MetaType metaType = typeModel_.Add(typeof(Message<T>), true);
         metaType.AddSubType((int)messageId, typeof(T));
      }

      ////////////////////////////////////////////////////////////////////////
      /// <summary>
      /// Implementation of IMessage
      /// </summary>
      public string DebugName
      {
         get { return typeof(T).Name; }
      }

      ////////////////////////////////////////////////////////////////////////
      /// <summary>
      /// Implementation of IMessage
      /// </summary>
      [ProtoMember((int)ProtoBufTags.MessageSenderId)]
      public string SenderId { get { return senderId_; } set { senderId_ = value; } }
      [ProtoMember((int)ProtoBufTags.MessageUid)]
      public string Uid { get { return uid_; } set { uid_ = value; } }
      [ProtoMember((int)ProtoBufTags.MessageTimestamp)]
      public DateTime Timestamp { get { return timestamp_; } set { timestamp_ = value; } }

      ////////////////////////////////////////////////////////////////////////
      /// <summary>
      /// Implementation of IMessage
      /// </summary>
      public bool Serialize(MemoryStream stream)
      {
         try
         {
            typeModel_.Serialize(stream, this);
            return true;
         }
         catch (System.Exception ex)
         {
            logger_.Exception(ex);
         }
         return false;
      }

      ////////////////////////////////////////////////////////////////////////
      /// <summary>
      /// Implementation of IMessage
      /// </summary>
      public bool Deserialize(MemoryStream stream)
      {
         try
         {
            typeModel_.Deserialize(stream, this, typeof(T));
            return true;
         }
         catch (System.Exception ex)
         {
            logger_.Exception(ex);
         }
         return false;
      }
   }
}
